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Open AccessArticle

Polyaspartamide Functionalized Catechol-Based Hydrogels Embedded with Silver Nanoparticles for Antimicrobial Properties

Department of Chemistry, University of Fribourg, Chemin du Musée, 9, 1700 Fribourg, Switzerland
School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
Author to whom correspondence should be addressed.
Polymers 2018, 10(11), 1188;
Received: 24 September 2018 / Revised: 21 October 2018 / Accepted: 22 October 2018 / Published: 25 October 2018
(This article belongs to the Special Issue Functional Polymers for Biomedicine)
In this study, polyaspartamide-based hydrogels were synthesized by boron-catechol coordination followed by incorporation of AgNPs into the materials. Free catechol moieties were exploited to produce AgNPs. TEM analyses displayed AgNPs of less than 20 nm in diameter and with minimum aggregation, attesting the role of hydrogels to act as an efficient template for the production of dispersed particles. XRD analyses confirmed the mean particle size using the Scherrer equation. Release kinetic studies were performed in DMEM medium, showing a slow release over a long time-period. Finally, the MIC and MBC were determined, demonstrating a bacteriostatic and bactericidal effect against Gram-positive S. aureus and Gram-negative E. coli. View Full-Text
Keywords: hydrogel; polyaspartamide; catechol; silver; antimicrobial hydrogel; polyaspartamide; catechol; silver; antimicrobial
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MDPI and ACS Style

Tan, M.; Choi, Y.; Kim, J.; Kim, J.-H.; Fromm, K.M. Polyaspartamide Functionalized Catechol-Based Hydrogels Embedded with Silver Nanoparticles for Antimicrobial Properties. Polymers 2018, 10, 1188.

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